Communications Between a Mobile Device and an Access Point Device

1. A method of communicating between a mobile device and an access point device, comprising: controlling a plurality of beacons in the access point device; establishing a communication between the access point device with the mobile device using a first beacon in the plurality of beacons; broadcasting availability of the plurality of beacons in the access point device via the first beacon; establishing the communication with the mobile device using a second beacon in the plurality of beacons; and performing calibration using range measurements obtained by the plurality of beacons, comprising calibrating a sensor of a first beacon type in accordance with the range measurements obtained from the plurality of beacons, wherein the plurality of beacons include at least a beacon of different type than the first beacon type.

2. The method of claim 1 , wherein the plurality of beacons comprises: short range beacons; midrange beacons; and long range beacons.

3. The method of claim 2 , wherein the short range beacons comprise two-dimensional bar codes and near field communication devices; wherein the midrange beacons comprise WiFi devices, Bluetooth devices, and Femtocell devices; and wherein the long range beacons comprise cellular devices.

4. The method of claim 1 , further comprising: estimating a position of the mobile device using measurements collected by the plurality of beacons.

5. The method of claim 4 , wherein the estimating the position of the mobile device comprises: applying weights to the measurements collected based at least in part on types of beacons associated with the measurements collected.

6. The method of claim 1 , wherein the calibrating the sensor of the first beacon type comprises: identifying one or more pre-calibrated beacons in the plurality of beacons; and applying weights to the one or more pre-calibrated beacons in the plurality of beacons.

7. The method of claim 1 , wherein the performing calibration further comprises: calibrating biases of sensors associated with the plurality of beacons against an estimated range calculated based on measurements from the plurality of beacons; and applying the biases of sensors associated with the plurality of beacons in subsequent measurements.

8. An access point device, comprises: at least one processor, wherein the at least one processor comprises logic configured to control a plurality of beacons in the access point device; logic configured to establish a communication between the access point device with a mobile device using a first beacon in the plurality of beacons; logic configured to broadcast availability of the plurality of beacons in the access point device via the first beacon; logic configured to establish the communication with the mobile device using a second beacon in the plurality of beacons; and logic configured to perform calibration using range measurements obtained by the plurality of beacons, comprising logic configured to calibrate a sensor of a first beacon type in accordance with the range measurements obtained from the plurality of beacons, wherein the plurality of beacons include at least a beacon of different type than the first beacon type.

9. The access point device of claim 8 , wherein the plurality of beacons comprises: short range beacons; midrange beacons; and long range beacons.

10. The access point device of claim 9 , wherein the short range beacons comprise two-dimensional bar codes and near field communication devices; wherein the midrange beacons comprise WiFi devices, Bluetooth devices, and Femtocell devices; and wherein the long range beacons comprise cellular devices.

11. The access point device of claim 8 , further comprises: logic configured to estimate a position of the mobile device using measurements collected by the plurality of beacons.

12. The access point device of claim 11 , wherein the logic configured to estimate the position of the mobile device comprises: logic configured to apply weights to the measurements collected based at least in part on types of beacons associated with the measurements collected.

13. The access point device of claim 8 , wherein the logic configured to calibrate the sensor of the first beacon type comprises: logic configured to identify one or more pre-calibrated beacons in the plurality of beacons; and logic configured to applying weights to the one or more pre-calibrated beacons in the plurality of beacons.

14. The access point device of claim 8 , wherein the logic configured to perform the calibration further comprises: logic configured to calibrate biases of sensors associated with the plurality of beacons against an estimated range calculated based on measurements from the plurality of beacons; and logic configured to apply the biases of sensors associated with the plurality of beacons in subsequent measurements.

15. A computer program product comprising a non-transitory medium storing computer programs for execution by one or more processors, the computer program product comprising: code for controlling a plurality of beacons in an access point device; code for establishing a communication between the access point device with a mobile device using a first beacon in the plurality of beacons; code for broadcasting availability of the plurality of beacons in the access point device via the first beacon; code for establishing the communication with the mobile device using a second beacon in the plurality of beacons; and code for performing calibration using range measurements obtained by the plurality of beacons, comprising code for calibrating a sensor of a first beacon type in accordance with the range measurements obtained from the plurality of beacons, wherein the plurality of beacons include at least a beacon of different type than the first beacon type.

16. The computer program product of claim 15 , wherein the plurality of beacons comprises: short range beacons; midrange beacons; and long range beacons.

17. The computer program product of claim 16 , wherein the short range beacons comprise two-dimensional bar codes and near field communication devices; wherein the midrange beacons comprise WiFi devices, Bluetooth devices, and Femtocell devices; and wherein the long range beacons comprise cellular devices.

18. The computer program product of claim 15 , further comprising: code for estimating a position of the mobile device using measurements collected by the plurality of beacons.

19. The computer program product of claim 18 , wherein the code for estimating the position of the mobile device comprises: code for applying weights to the measurements collected based at least in part on types of beacons associated with the measurements collected.

20. The computer program product of claim 15 , wherein the code for calibrating the sensor of the first beacon type comprises: code for identifying one or more pre-calibrated beacons in the plurality of beacons; and code for applying weights to the one or more pre-calibrated beacons in the plurality of beacons.

21. The computer program product of claim 15 , wherein the code for performing calibration further comprises: code for calibrating biases of sensors associated with the plurality of beacons against an estimated range calculated based on measurements from the plurality of beacons; and code for applying the biases of sensors associated with the plurality of beacons in subsequent measurements.

22. An access point device, comprises: means for controlling a plurality of beacons in the access point device; means for establishing a communication between the access point device with a mobile device using a first beacon in the plurality of beacons; means for broadcasting availability of the plurality of beacons in the access point device via the first beacon; means for establishing the communication with the mobile device using a second beacon in the plurality of beacons; and means for calibrating a sensor of a first beacon type in accordance with the range measurements obtained from the plurality of beacons, wherein the plurality of beacons include at least a beacon of different type than the first beacon type.

23. The access point device of claim 22 , wherein the means for calibrating the sensor of the first beacon type comprises: means for identifying one or more pre-calibrated beacons in the plurality of beacons; and means for applying weights to the one or more pre-calibrated beacons in the plurality of beacons.

24. The access point device of claim 22 , further comprises: means for calibrating biases of sensors associated with the plurality of beacons against an estimated range calculated based on measurements from the plurality of beacons; and means for applying the biases of sensors associated with the plurality of beacons in subsequent measurements.

25. A mobile device, comprises: at least one processor, wherein the at least one processor comprises logic configured to control a plurality of beacons in the mobile device; logic configured to establish a communication between an access point device with the mobile device using a first beacon in the plurality of beacons; logic configured to receive a broadcast availability of a set of beacons in the access point device via the first beacon; logic configured to establish the communication with the access point device using a second beacon in the plurality of beacons; and logic configured to calibrate a sensor of a first beacon type in accordance with the range measurements obtained from the plurality of beacons, wherein the plurality of beacons include at least a beacon of different type than the first beacon type.

26. The mobile device of claim 25 , further comprising: logic configured to estimate a position of the mobile device using measurements collected by the plurality of beacons.

27. The mobile device of claim 26 , wherein the logic configured to estimate the position of the mobile device comprises: logic configured to apply weights to the measurements collected based at least in part on types of beacons associated with the measurements collected.

28. The mobile device of claim 25 , wherein the logic configured to calibrate the sensor of the first beacon type comprises: logic configured to identify one or more pre-calibrated beacons in the plurality of beacons; and logic configured to apply weights to the one or more pre-calibrated beacons in the plurality of beacons.

29. The mobile device of claim 25 , further comprises: logic configured to calibrate biases of sensors associated with the plurality of beacons against an estimated range calculated based on measurements from the plurality of beacons; and logic configured to apply the biases of sensors associated with the plurality of beacons in subsequent measurements.